Scroll bars to the Expanded View
When working with expanded views that don't all fit on the screen at the same time, it would be very VERY helpful to have some navigation method other than drag/panning the display around. Scroll bars would probably be best for this. Or perhaps a thumbnail of the entire view where you can click on the spot you want to zip to.
Since the expanded view is without boundaries, you would need to program the scroll bars to size and position themselves relative to the present extents of the view dynamically.